Optical sensor



FIG. 1 is a top, front and left side perspective view of the optical sensor of our design.

FIG. 2 a front elevation view thereof.

FIG. 3 is a rear view thereof.

FIG. 4 is a left side elevation view thereof.

FIG. 5 is a right side elevation view thereof.

FIG. 6 is a top plan view thereof; and,

FIG. 7 is a bottom plan view thereof. 

CLAIM The ornamental design for a optical sensor, as shown and described. 